Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
inkiness is a noun meaning "the quality or state of the achromatic color of least lightness (bearing the least resemblance to white)". It carries one recorded sense.
the quality or state of the achromatic color of least lightness (bearing the least resemblance to white)
Forms marked are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for inkiness come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.